"Hill of Suicides" Quest in Oblivion (Xbox 360): Doesn't Exist—Check Quest Name

You cannot start a "Hill of Suicides" quest in The Elder Scrolls IV: Oblivion—no such quest exists in the base game. You may be misremembering the name, or it could be from a mod.

If you recall any details—such as the starting location, objectives, or involved characters—I can help identify the correct quest. Otherwise, double-check the quest name.